WO2021031166A1

WO2021031166A1 - Display substrate and manufacturing method therefor, and display device

Info

Publication number: WO2021031166A1
Application number: PCT/CN2019/101834
Authority: WO
Inventors: 曾超; 黄炜赟; 龙跃; 黄耀; 李孟
Original assignee: 京东方科技集团股份有限公司; 成都京东方光电科技有限公司
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2021-02-25
Also published as: BR112019026794A2; CN116027600A; CN112771599B; AU2019275624B2; EP4020443A4; RU2720735C1; US20210407426A1; US11404007B2; MX2019015381A; JP7550516B2; EP4020443A1; CN112771599A; JP2022551772A; AU2019275624A1

Abstract

A display substrate and a manufacturing method therefor, and a display device. The display substrate comprises: a base substrate comprising a pixel array area and a peripheral area; as well as a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group, which are provided in the peripheral area and located on a first side of the base substrate. The first scan driving circuit comprises a plurality of cascaded first shift registers; the plurality of power lines are configured to provide a plurality of power supply voltages to the plurality of cascaded shift registers comprised in the first scan driving circuit; the first signal line group comprises at least one timing signal line; the second signal line group comprises a first trigger signal line configured to provide a first trigger signal to the first shift register of the first stage; and the first trigger signal line is located between the plurality of power lines and the pixel array area. The display substrate facilitates the introduction of signal lines and is beneficial to realize the display of a large-size display panel.

Description

Display substrate, manufacturing method thereof, and display device

Technical field

The embodiments of the present disclosure relate to a display substrate, a manufacturing method thereof, and a display device.

Background technique

In the field of display technology, for example, a pixel array of a liquid crystal display panel or an Organic Light Emitting Diode (OLED) display panel usually includes multiple rows of gate lines and multiple columns of data lines interlaced with the gate lines. The gate line can be driven by a bonded integrated drive circuit. In recent years, with the continuous improvement of the manufacturing process of amorphous silicon thin film transistors or oxide thin film transistors, it is also possible to directly integrate the gate line driver circuit on the thin film transistor array substrate to form GOA (Gate Driver On Array) to drive the gate line . For example, a GOA including multiple cascaded shift register units can be used to provide switching state voltage signals (scanning signals) for multiple rows of gate lines of the pixel array, so as to control the multiple rows of gate lines to be turned on sequentially, and the data lines simultaneously A data signal is provided to the pixel units of the corresponding row in the pixel array, so as to form a gray level voltage required for each gray scale of the displayed image in each pixel unit, and then display a frame of image.

Summary of the invention

At least one embodiment of the present disclosure provides a display substrate, which includes: a base substrate including a pixel array area and a peripheral area; a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group; In the peripheral area and located on the first side of the base substrate. The first scan driving circuit includes a plurality of cascaded first shift registers; the plurality of power supply lines are configured to provide a plurality of cascaded first shift registers included in the first scan driving circuit Power supply voltage; the first signal line group includes at least one timing signal line, configured to provide at least one timing signal to a plurality of cascaded first shift registers included in the first scan driving circuit; the second signal The line group includes a first trigger signal line, which is configured to be connected to the first shift register of the first stage among the plurality of cascaded first shift registers included in the first scan driving circuit, so as to communicate to the first stage The first shift register provides a first trigger signal, and the first trigger signal line is located between the plurality of power supply lines and the pixel array area.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the second signal line group is located on the side of the first scan driving circuit close to the pixel array area, and the first signal line group is located on the The other side of the first scan driving circuit opposite to the side where the second signal line group is located.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the pixel array region includes a first display area and a second display area that are parallel to each other and do not overlap, and the first scan driving circuit and the first display The area is connected to drive the display of the first display area; the display substrate further includes a second scan driving circuit disposed in the peripheral area and located on the first side of the base substrate, and scans along the pixel array The direction is arranged in sequence with the first scan driving circuit, and is connected to the second display area to drive the second display area to display. The second scan driving circuit includes a plurality of cascaded second shift registers, the second signal line group further includes a second trigger signal line, and the second scan driving circuit includes a plurality of cascaded first shift registers. The first-stage second shift register of the two shift registers is connected to provide a second trigger signal to the first-stage second shift register included in the second scan driving circuit.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the extension lengths of the first trigger signal line and the second trigger signal line are different from those of the first scan driving circuit and the second scan driving circuit. The arrangement length is the same.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the first trigger signal line and the second trigger signal line are arranged side by side.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the multiple power lines include a first power line and a second power line; the first power line and the second power line are configured to provide the same The first power supply voltage.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the orthographic projection of the first power line on the base substrate overlaps with the orthographic projection of the first scan driving circuit on the base substrate, The orthographic projection of the second power line on the base substrate is located between the orthographic projection of the first power line on the base substrate and the orthographic projection of the second signal line group on the base substrate. between.

For example, the display substrate provided by at least one embodiment of the present disclosure further includes at least one first resistor; the first resistor is located on the side of the first scan driving circuit away from the first shift register of the first stage, so The first trigger signal line is connected to the first stage first shift register of the first scan driving circuit through the at least one first resistor.

For example, the display substrate provided by at least one embodiment of the present disclosure further includes at least one second resistor, and the second resistor is located at the last stage of the first scan driving circuit, the first shift register and the second scan driver. Between the first stage and the second shift register of the circuit, the second trigger signal line is connected to the first stage and second shift register of the second scan driving circuit through the at least one second resistor.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the first resistor and the second resistor have different sizes.

For example, the display substrate provided by at least one embodiment of the present disclosure further includes a folding line located between the first display area and the second display area; the second resistor is located in the extending direction of the folding line, The extension direction of the folding line is perpendicular to the extension direction of the first signal line group and the second signal line group.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the orthographic projection of the at least one second resistor on the base substrate is located at the last stage of the first scan driving circuit. The orthographic projection of the base substrate and the first-stage second shift register of the second scan driving circuit are between the orthographic projection of the base substrate.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the at least one first resistor is located between the base substrate and the second signal line group in a direction perpendicular to the base substrate, And the orthographic projection of the at least one first resistor on the base substrate is located on the side of the orthographic projection of the second signal line group on the base substrate away from the pixel array area.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the material of the first resistor is a semiconductor material.

For example, the display substrate provided by at least one embodiment of the present disclosure further includes at least one first connection line and at least one second connection line; the first connection line connects one end of the at least one first resistor to the first The first-stage first shift register of the scan driving circuit is connected, and the second connection line connects the other end of the at least one first resistor with the first trigger signal line.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the first connection line and the second connection line are located on a side of the at least one first resistor away from the base substrate.

For example, the display substrate provided by at least one embodiment of the present disclosure further includes: a first conductive connecting portion, a second conductive connecting portion, a first insulating layer, and a second insulating layer; the first conductive connecting portion and the second The conductive connection part is located on the side of the first connection line and the second connection line away from the base substrate, and is connected to the plurality of power lines, the first signal line group, and the second signal line The first insulating layer is located between the at least one first resistor and the first connecting line and the second connecting line in a direction perpendicular to the base substrate. The two insulating layers are located between the first connection line and the second connection line and the first conductive connection portion and the second conductive connection portion in a direction perpendicular to the base substrate. One end of the first conductive connection portion is connected to one end of the first connection line through a via hole penetrating the second insulating layer, and the other end of the first conductive connection portion is connected to one end of the first connection line by penetrating the first insulating layer and The via hole of the second insulating layer is connected to one end of the at least one first resistor, and the other end of the first connection line is connected to the first shift register of the first stage of the first scan driving circuit; One end of the second conductive connection portion is connected to one end of the second connection line through a via hole penetrating the second insulating layer, and the other end of the second conductive connection portion is connected to one end of the second connection line by penetrating the first insulating layer and the The via hole of the second insulating layer is connected to the other end of the at least one first resistor, and the other end of the second connecting line is connected to the first trigger signal line through a via hole penetrating the second insulating layer .

For example, in the display substrate provided by at least one embodiment of the present disclosure, each of the first shift registers of the first scan driving circuit includes a first constituent transistor connected to the first power line and a The second constituent transistor and the third constituent transistor connected to the two power lines; the orthographic projection of the first constituent transistor on the base substrate is located on the orthographic projection of the first signal line group on the base substrate and the The first power line is between the orthographic projection of the base substrate and is close to the orthographic projection of the first power line on the base substrate, and the second and third constituent transistors are on the base substrate The orthographic projection of the first power line is located between the orthographic projection of the first power line on the base substrate and the orthographic projection of the second power line on the base substrate, and is close to the second power line on the substrate Orthographic projection of the base substrate.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the multiple power lines include a third power line and a fourth power line; the third power line and the fourth power line are configured to provide the same The second power supply voltage; the orthographic projection of the fourth power line on the base substrate coincides with the orthographic projection of the first scan drive circuit on the base substrate, and the third power line is on the substrate The orthographic projection of the base substrate is located between the orthographic projection of the fourth power line on the base substrate and the orthographic projection of the first signal line group on the base substrate.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the first shift register of the first scan driving circuit each further includes a fourth constituent transistor connected to the third power line and The fifth constituent transistor connected by four power lines; the orthographic projection of the fourth constituent transistor on the base substrate is located at the orthographic projection of the third power line on the base substrate away from the first signal line group One side of the orthographic projection of the base substrate and close to the orthographic projection of the third power line on the base substrate, and the orthographic projection of the fifth constituent transistor on the base substrate is located on the fourth The orthographic projection of the power line on the base substrate and the orthographic projection of the second signal line group on the base substrate are close to the orthographic projection of the fourth power line on the base substrate.

At least one embodiment of the present disclosure provides a display substrate, including: a base substrate, including a pixel array area and a peripheral area, a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group; In the peripheral area and located on the first side of the base substrate; the first scan driving circuit includes a plurality of cascaded first shift registers; the plurality of power lines are configured to The plurality of cascaded first shift registers included in the scan driving circuit provide a plurality of power supply voltages; the first signal line group includes at least one timing signal line configured to provide multiple stages of the first scan driving circuit The connected first shift register provides at least one timing signal; the second signal line group includes a first trigger signal line, which is configured to be connected to a plurality of cascaded first shift registers included in the first scan driving circuit The first shift register of the first stage is connected to provide a first trigger signal to the first shift register of the first stage. The first scan driving circuit includes a first transistor, a second transistor, and a third transistor. The first transistor, the second transistor, and the third transistor are respectively connected to the first signal line group, and the extension direction of the channels of the first transistor, the second transistor, and the third transistor It is parallel to the extending direction of the first signal line group and the second signal line group.

For example, in the display substrate provided by at least one embodiment of the present disclosure, the first scan driving circuit further includes a sixth transistor and a seventh transistor, and the sixth transistor and the seventh transistor are respectively connected to the first signal The line group is connected, and the extension direction of the channel of the sixth transistor and the seventh transistor is parallel to the extension direction of the first signal line group and the second signal line group.

At least one embodiment of the present disclosure further provides a display device including the display substrate provided by any embodiment of the present disclosure.

At least one embodiment of the present disclosure further provides a method for manufacturing a display substrate, including: providing a base substrate; and sequentially forming a semiconductor layer, a first insulating layer, a first conductive layer, and a first insulating layer in a direction perpendicular to the base substrate. The second insulating layer, the second conductive layer, the third insulating layer, and the third conductive layer; the power line, the first signal line group, and the second signal line group are located on the third conductive layer; A scan driving circuit is formed on the semiconductor layer, the first conductive layer and the second conductive layer; the first scan driving circuit penetrates the first insulating layer, the second insulating layer and the The via holes of the third insulating layer are respectively connected to the power line, the first signal line group, and the second signal line group.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings of the embodiments. Obviously, the drawings in the following description only relate to some embodiments of the present invention, rather than limit the present invention. .

Figure 1 is a circuit diagram of a light-emitting control shift register;

FIG. 2 is a signal timing diagram of the light-emitting control shift register shown in FIG. 1 during operation;

3 is a schematic diagram of a first resistor and a second resistor provided by at least one embodiment of the present disclosure;

4 is a schematic diagram of a display substrate provided by at least one embodiment of the present disclosure;

5A is a schematic diagram of the layout of a display substrate provided by at least one embodiment of the present disclosure;

FIG. 5B shows a schematic diagram of the layout of the display substrate including the first stage shift register of the second scan driving circuit;

6A, FIG. 7A, FIG. 8 and FIG. 9A respectively show plan views of each layer wiring of the display substrate shown in FIG. 5A;

6B, FIG. 7B, FIG. 8 and FIG. 9B respectively show plan views of each layer wiring of the first-stage shift register included in the display substrate shown in FIG. 5B;

10 is a cross-sectional view of the display substrate shown in FIG. 5B along the A-A' direction;

FIG. 11 is a schematic diagram of a display device provided by at least one embodiment of the present disclosure; and

FIG. 12 is a flowchart of a manufacturing method of a display substrate provided by at least one embodiment of the present disclosure.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "a", "one" or "the" do not mean quantity limitation, but mean that there is at least one. "Include" or "include" and other similar words mean that the element or item appearing before the word encompasses the element or item listed after the word and its equivalents, but does not exclude other elements or items. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to indicate the relative position relationship. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

The present disclosure will be described below through several specific embodiments. In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components may be omitted. When any component of an embodiment of the present invention appears in more than one drawing, the component is represented by the same reference number in each drawing.

Figure 1 is a circuit diagram of a light-emitting control shift register. FIG. 2 is a signal timing diagram of the light-emitting control shift register shown in FIG. 1 during operation. The working process of the light-emitting control shift register will be briefly introduced below in conjunction with FIG. 1 and FIG. 2.

As shown in FIG. 1, the light emission control shift register 100 includes 10 transistors (first transistor T1, second transistor T2, ..., tenth transistor T10) and 3 capacitors (first capacitor C1, second capacitor C2, The third capacitor C3). For example, when a plurality of light emission control shift registers 100 are cascaded, the first pole of the first transistor T1 in the first stage shift register 100 is configured to be connected to the first trigger signal line ESTV1 to receive the first trigger signal ESTV1 , And the first pole of the first transistor T1 in the light-emission control shift register 100 at other levels is connected to the light-emission control shift register 100 at the previous level to receive the first output signal output by the light-emission control shift register 100 at the previous level EM.

In addition, CK in FIGS. 1 and 2 represents the first clock signal terminal, ECK represents the first clock signal line and the first clock signal, and the first clock signal terminal CK is connected to the first clock signal line ECK to receive the first clock. Signal, CB represents the second clock signal terminal, ECB represents the second clock signal line and the second clock signal, and the second clock signal terminal CB and the second clock signal line ECB are connected to receive the second clock signal, for example, the first clock The signal ECK and the second clock signal ECB can use pulse signals with a duty cycle greater than 50%; VGH1 represents the first power supply voltage provided by the first power supply line and the first power supply line, for example, the first power supply voltage is a DC high level, VGL1 represents the third power supply line and the second power supply voltage provided by the third power supply line. For example, the second power supply voltage is a DC low level, and the first power supply voltage is greater than the second power supply voltage; N1, N2, N3, and N4 represent respectively The first node, the second node, the third node, and the fourth node.

As shown in FIG. 1, the gate of the first transistor T1 is connected to the first clock signal terminal CK (ie, the first clock signal line ECK) to receive the first clock signal, and the first electrode of the first transistor T1 and the input terminal IN Connected, the second electrode of the first transistor T1 is connected to the first node N1. For example, when the light emission control shift register is the first stage shift register, the input terminal IN is connected to the first trigger signal line ESTV1 to receive the first trigger signal, and when the light emission control shift register is the first stage shift register In the case of shift registers at all levels other than the register, the input terminal IN is connected to the output terminal OUT of the upper stage light-emitting control shift register.

The gate of the second transistor T2 is connected to the first node N1, the first electrode of the second transistor T2 is connected to the first clock signal line ECK to receive the first clock signal, and the second electrode of the second transistor T2 is connected to the second node N2 connection.

The gate of the third transistor T3 is connected to the first clock signal line ECK to receive the first clock signal, the first pole of the third transistor is connected to the third power line VGL1 to receive the second power supply voltage, and the second of the third transistor T3 The pole is connected to the second node N2.

The gate of the fourth transistor T4 is connected to the second clock signal terminal CB (ie, the second clock signal line ECB) to receive the second clock signal, the first pole of the fourth transistor T4 is connected to the first node N1, and the fourth transistor The second pole of T4 is connected to the first pole of the fifth transistor T5.

The gate of the fifth transistor T5 is connected to the second node N2, and the second electrode of the fifth transistor T5 is connected to the first power line VGH to receive the first power voltage.

The gate of the sixth transistor T6 is connected to the second node N2, the first electrode of the sixth transistor T6 is connected to the second clock signal line ECB to receive the second clock signal, and the second electrode of the sixth transistor T6 is connected to the third node N3 connection.

The first end of the first capacitor C1 is connected to the second node N2, and the second end of the first capacitor C2 is connected to the third node N3.

The gate of the seventh transistor T7 is connected to the second clock signal line ECB to receive the second clock signal, the first electrode of the seventh transistor T7 is connected to the third node N3, and the second electrode of the seventh transistor T7 is connected to the fourth node N4 connection.

The gate of the eighth transistor T8 is connected to the first node N1, the first electrode of the eighth transistor T8 is connected to the first power supply line VGH1 to receive the first power supply voltage, and the second electrode of the eighth transistor T8 is connected to the fourth node N4 .

The gate of the ninth transistor T9 is connected to the fourth node N4, the first electrode of the ninth transistor T9 is connected to the first power line VGH1 to receive the first power voltage, and the second electrode of the ninth transistor T9 is connected to the output terminal OUT.

The first terminal of the third capacitor C3 is connected to the fourth node N4, and the second terminal of the third capacitor C3 is connected to the first power line VGH1 to receive the first power voltage.

The gate of the tenth transistor T10 is connected to the first node N1, the first electrode of the tenth transistor T10 is connected to the third power line VGL1 to receive the second power voltage, and the second electrode of the tenth transistor T10 is connected to the output terminal OUT.

The first end of the second capacitor C2 is connected to the second clock signal line ECB to receive the second clock signal, and the second end of the second capacitor C2 is connected to the first node N1.

The transistors in the light emission control shift register 100 shown in FIG. 1 are all described using P-type transistors as an example, that is, each transistor is turned on when the gate is connected to a low level, and is turned off when the gate is connected to a high level. At this time, the first electrode may be a source electrode, and the second electrode may be a drain electrode.

The embodiments of the present disclosure include but are not limited to the configuration of FIG. 1. For example, each transistor in the light-emitting control shift register 100 can also adopt N-type transistors or a mixture of P-type transistors and N-type transistors. The port polarity of the type of transistor can be connected according to the port polarity of the corresponding transistor in the embodiment of the present disclosure.

FIG. 2 is a signal timing diagram of the light-emitting control shift register shown in FIG. 1 during operation. The working process of the light-emitting control shift register will be described in detail below in conjunction with FIG. 1 and FIG. 2. For example, the working principle of the first-stage light-emitting control shift register 100 is described, and the working principles of the other stages of the light-emitting control shift register 100 are similar to this, and will not be repeated. As shown in FIG. 2, the working process of the light emission control shift register includes six stages, namely the first stage P1, the second stage P2, the third stage P3, the fourth stage P4, the fifth stage P5 and the sixth stage. P6, Figure 2 shows the timing waveforms of each signal in each phase.

In the first stage P1, as shown in Figure 2, the first clock signal ECK is low, so the first transistor T1 and the third transistor T3 are turned on, and the turned-on first transistor T1 will be high. The trigger signal ESTV1 is transmitted to the first node N1, so that the level of the first node N1 becomes a high level, so the second transistor T2, the eighth transistor T8, and the tenth transistor T10 are turned off. In addition, the turned-on third transistor T3 transmits the low-level second power supply voltage VGL1 to the second node N2, so that the level of the second node N2 becomes low, so the fifth transistor T5 and the sixth transistor T6 is turned on. Since the second clock signal ECB is at a high level, the seventh transistor T7 is turned off. In addition, due to the storage effect of the third capacitor C3, the level of the fourth node N4 can be maintained at a high level, so that the ninth transistor T9 is turned off. In the first phase P1, since the ninth transistor T9 and the tenth transistor T10 are both turned off, the first output signal output by the output terminal OUT_1 of the light emission control shift register 100 maintains the previous low level.

In the second stage P2, as shown in FIG. 4, the second clock signal ECB is low, so the fourth transistor T4 and the seventh transistor T7 are turned on. Since the first clock signal ECK is at a high level, the first transistor T1 and the third transistor T3 are turned off. Due to the storage effect of the first capacitor C1, the second node N2 can continue to maintain the low level of the previous stage, so the fifth transistor T5 and the sixth transistor T6 are turned on. The high-level first power supply voltage VGH1 is transmitted to the first node N1 through the turned-on fifth transistor T5 and the fourth transistor T4, so that the level of the first node N1 continues to maintain the high level of the previous stage, so the first The second transistor T2, the eighth transistor T8, and the tenth transistor T10 are turned off. In addition, the low-level second clock signal ECB is transmitted to the fourth node N4 through the turned-on sixth transistor T6 and the seventh transistor T7, so that the level of the fourth node N4 becomes low, so the ninth The transistor T9 is turned on, and the turned-on ninth transistor T9 outputs the high-level first power supply voltage VGH1, so the first output signal output by the output terminal OUT_1 of the light-emitting control shift register 100 in the second stage P2 is high Level.

In the third phase P3, as shown in FIG. 4, the first clock signal ECK is low, so the first transistor T1 and the third transistor T3 are turned on. The second clock signal ECB is at a high level, so the fourth transistor T4 and the seventh transistor T7 are turned off. Due to the storage effect of the third capacitor C3, the level of the fourth node N4 can maintain the low level of the previous stage, so that the ninth transistor T9 remains in the on state, and the turned-on ninth transistor T9 will be high. The first power supply voltage VGH1 is output, so the output signal output by the output terminal OUT_1 of the light emission control shift register 100 in the third stage P3 is still at a high level. At the same time, at this stage, the output terminal OUT_2 of the second stage light-emitting control shift register 100 outputs a high level (for detailed description, please refer to the working process of the first stage light-emitting control shift register in the second stage P2).

In the fourth stage P4, as shown in FIG. 4, the first clock signal ECK is at a high level, so the first transistor T1 and the third transistor T3 are turned off. The second clock signal ECB is low, so the fourth transistor T4 and the seventh transistor T7 are turned on. Due to the storage effect of the second capacitor C2, the level of the first node N1 maintains the high level of the previous stage, so that the second transistor T2, the eighth transistor T8, and the tenth transistor T10 are turned off. Due to the storage effect of the first capacitor C1, the second node N2 continues to maintain the low level of the previous stage, so that the fifth transistor T5 and the sixth transistor T6 are turned on. In addition, the low-level second clock signal ECB is transmitted to the fourth node N4 through the turned-on sixth transistor T6 and the seventh transistor T7, so that the level of the fourth node N4 becomes low, so the ninth The transistor T9 is turned on, and the turned-on ninth transistor T9 outputs the high-level first power supply voltage VGH1, so the first output signal output by the output terminal OUT_1 of the light emission control shift register 100 in the second stage P2 is still High level. At the same time, at this stage, the output terminal OUT_2 of the second stage light emission control shift register 100 outputs a high level (for detailed description, please refer to the working process of the first stage light emission control shift register in the third stage P3).

In the fifth stage P5, as shown in FIG. 4, the first clock signal ECK is low, so the first transistor T1 and the third transistor T3 are turned on. The second clock signal ECB is at a high level, so the fourth transistor T4 and the seventh transistor T7 are turned off. The turned-on first transistor T1 transmits the low-level first trigger signal ESTV to the first node N1, so that the level of the first node N1 becomes low.

For example, in the fifth stage P5, the low level voltage of the first clock signal ECK is -6V, the low level voltage of the first trigger signal ESTV1 is -6V, and the threshold voltage Vth of the first transistor T1 is -1.5V . Since the first transistor T1 is a P-type transistor, in order to turn on the first transistor T1, the voltage Vgs of the gate and source of the first transistor T1 needs to be smaller than the threshold voltage Vth of the first transistor T1. Therefore, when the first node N1 When the first transistor T1 is charged to -4.5V, the first transistor T1 is turned off. At this time, the charging of the first node N1 is stopped. That is, at this stage, the low-level voltage of the first node N1 is -4.5V, so the second transistor T2, the second transistor The eight transistor T8 and the tenth transistor T10 are turned on. The turned-on second transistor T2 transmits the low-level first clock signal ECK to the second node N2, thereby further lowering the level of the second node N2, so the second node N2 continues to maintain the low power level of the previous stage Level, so that the fifth transistor T5 and the sixth transistor T6 are turned on. In addition, the turned-on eighth transistor T8 transmits the high-level first power supply voltage VGH1 to the fourth node N4, so that the level of the fourth node N4 becomes a high level, so the ninth transistor T9 is turned off. The turned-on tenth transistor T10 responds to the low level (for example, -4.5V) of the first node N1 and outputs the low level second power supply voltage VGL (for example, -6V). Similarly, the tenth transistor T10 The threshold voltage Vth of the tenth transistor T10 is -1.5V. In order to turn on the tenth transistor T10, the voltage Vgs of the gate and source of the tenth transistor T10 needs to be smaller than the threshold voltage Vth of the tenth transistor T10. Therefore, when the output terminal OUT outputs The tenth transistor T10 is turned off when the voltage is -3V, that is, the voltage of the low level of the output terminal OUT at this stage is -3V, so the output signal of the output terminal OUT_1 of the light emission control shift register 100 in the fifth stage P5 It becomes the first low level (for example, -3V). At the same time, at this stage, the output terminal OUT_2 of the second-stage light-emitting control shift register 100 outputs a high level (for detailed description, please refer to the working process of the first-stage light-emitting control shift register in the fourth stage P4).

In the sixth stage P6, as shown in FIG. 4, the first clock signal ECK is at a high level and the second clock signal ECB is at a low level, so the fourth transistor T4 and the seventh transistor T7 are turned on. Since the second clock signal ECB changes from the high level of the fifth stage P5 to the low level, for example, the amount of change is Δt (for example, greater than 6V), according to the bootstrap effect of the second capacitor C2, the power of the first node N1 The level changes from the low level (for example, -4.5V) of P5 in the fifth stage to a lower low level (for example, -4.5V-Δt), so that the second transistor T2 and the tenth transistor T10 are in the first The node N1 is turned on under the control of the low level (for example, -4.5V-Δt). According to the conduction characteristic of the tenth transistor T10 described above, the low level second power supply voltage VGL (for example, -6V) Can be completely output to the output terminal OUT. For example, in the sixth stage P6, the voltage output by the output terminal OUT is the second low level (for example, -6V). At the same time, at this stage, the output terminal OUT_2 of the second stage first shift register 100 outputs a low level (for example, -3V, for specific description, please refer to the working process of the first stage first shift register in the fourth stage P4. ).

For example, as shown in FIG. 1, on the left side of the display substrate, due to dense wiring, the space left for the first trigger signal line ESTV1 is small, which makes it inconvenient to introduce multiple trigger signal lines. In addition, as shown in FIG. 1, since there is only one first power supply line VGH1, and the fifth transistor T5, the eighth transistor T8, and the ninth transistor T9 are wound in order to be connected to the first power supply voltage line VGH1, thereby increasing The space occupied by the display substrate in the vertical direction is not conducive to the layout design of the display substrate.

At least one embodiment of the present disclosure provides a display substrate, including: a base substrate including a pixel array area and a peripheral area; a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group; In the peripheral area and located on the first side of the base substrate. The first scan driving circuit includes a plurality of cascaded first shift registers; the plurality of power supply lines are configured to provide a plurality of power supply voltages to the plurality of cascaded first shift registers included in the first scan driving circuit; a first signal The line group includes at least one timing signal line, configured to provide at least one timing signal to a plurality of cascaded first shift registers included in the first scan driving circuit; the second signal line group includes a first trigger signal line, configured to The first-stage first shift register of the plurality of cascaded first shift registers included in the first scan driving circuit is connected to provide a first trigger signal to the first-stage first shift register, and the first trigger signal line Located between the multiple power supply voltage lines and the pixel array area.

At least one embodiment of the present disclosure also provides a display device and a manufacturing method corresponding to the above-mentioned display substrate.

In the display substrate provided by the above-mentioned embodiments of the present disclosure, the first trigger signal line is arranged between the plurality of power lines and the pixel array area, which facilitates the introduction of signal lines and facilitates the realization of the display of a large-size display panel.

The embodiments of the present disclosure and some examples thereof will be described in detail below with reference to the accompanying drawings.

At least one embodiment of the present disclosure provides a display substrate. For example, the display substrate may be suitable for a single-row single-drive scan driving circuit, that is, the output signal output by the first-stage shift register drives only one row of pixel units. Since the single-row single-drive scan driving circuit requires half of the driving load compared to the single-row dual-drive scan driving circuit, it has stronger driving capability and is more suitable for large-size display panels.

It should be noted that the display substrate can also be applied to a single-row dual-drive scan driving circuit, that is, the output signal output by the one-stage shift register can drive two rows of pixel units, which is not limited in the embodiment of the present disclosure.

FIG. 4 is a schematic diagram of a display substrate provided by at least one embodiment of the present disclosure. For example, as shown in FIG. 4, the display substrate 1 includes a base substrate 10, a first scan driving circuit 130, a plurality of power lines 140, a first signal line group 150, and a second signal line group 160.

For example, the base substrate 100 may be made of, for example, glass, plastic, quartz, or other suitable materials, which are not limited in the embodiments of the present disclosure. For example, the base substrate 10 includes a pixel array area 110 and a peripheral area 120. A first scan driving circuit 130, a plurality of power supply lines 140, a first signal line group 150, and a second signal line group 160 are arranged in the peripheral area 120 and located The first side of the base substrate 10 is, for example, located on the left side of the base substrate 10.

For example, the pixel array area 110 includes a plurality of pixel units P arranged in an array. For example, each of the plurality of pixel units P includes a pixel circuit, for example, may further include a light-emitting element (not shown in the figure).

For example, the first scan driving circuit 130 includes a plurality of cascaded first shift registers 100, for example, includes a plurality of shift registers 100 as shown in FIG. 1. For clarity and concise description, the first shift register 100 is referred to as the shift register 100 for short below. The following embodiments are the same as this and will not be repeated here. For example, the output terminals of the plurality of shift registers 100 are respectively connected to the light emission control terminals of each row of pixel circuits located in the pixel array area to provide output signals (for example, light emission control signals) to the pixel circuits of each row, so as to drive the light emitting elements to emit light. . For example, the pixel circuit may be a pixel circuit including circuit structures such as 2T1C, 4T2C, 8T2C, etc. in the art, which will not be repeated here.

For example, the first scan driving circuit 130 includes at least one transistor, and the extension direction of the channel of the at least one transistor is parallel to the extension direction of the first signal line group 150 and the second signal line group 160, so that the first scan driving can be reduced. The circuit 130 has an area in the direction perpendicular to the channel length direction, which improves the process matching degree and forms a better channel effect.

For example, the first scan driving circuit 130 includes a first transistor T1, a second transistor T2, and a third transistor T3. The first transistor T1, the second transistor T2, and the third transistor T3 are respectively connected to the first signal line group 150, for example, It is connected to the first clock signal ECK in the first signal line group 150. For example, the extension directions of the channels of the first transistor T1, the second transistor T2, and the third transistor T3 are parallel to the extension directions of the first signal line group 150 and the second signal line group 160. For example, the extension direction of the channel is the extension direction from the first pole to the second pole of the transistor, for example, the extension direction from the first pole to the second pole of the first transistor T1.

For example, the first scan driving circuit 130 further includes a sixth transistor T6 and a seventh transistor T7, the sixth transistor T6 and the seventh transistor T7 are respectively connected to the first signal line group 150, and the sixth transistor T6 and the seventh transistor T7 are connected to each other. The extension direction of the track is parallel to the extension direction of the first signal line group 150 and the second signal line group 160.

For example, the plurality of power supply lines 140 are configured to provide a plurality of power supply voltages to the plurality of cascaded shift registers 100 included in the first scan driving circuit 130. For example, a first power supply voltage (for example, with a high DC level) and a second power supply voltage (for example, with a low DC level) are provided.

The first signal line group 150 includes at least one timing signal line, for example, including a first clock signal line ECK and a second clock signal line ECB, and is configured to add multiple cascaded shift registers 100 included in the first scan driving circuit 130 At least one timing signal is provided, for example, the first clock signal ECK and the second clock signal ECB described above.

For example, in at least one example, the second signal line group 160 includes a first trigger signal line ESTV1, which is configured to be a first-stage shift register in a plurality of cascaded shift registers 100 included in the first scan driving circuit 150 Connected to provide the first trigger signal to the first stage shift register. For example, the first trigger signal line ESTV1 is located between the plurality of power supply lines 140 and the pixel array area 110. For example, as shown in FIG. 4, the first trigger signal line ESTV1 may be located on the right side of the first scan drive circuit 130, that is, the orthographic projection of the first trigger signal line ESTV1 on the base substrate 10 is located on the first scan drive circuit. 130 between the orthographic projection of the base substrate 10 and the pixel array region 110 on the base substrate 10; of course, it can also be located between the transistors of the first scan driving circuit 130, that is, the first trigger signal line ESTV1 The orthographic projection of the base substrate 10 and the orthographic projection of the first scan driving circuit 130 on the base substrate 10 at least partially overlap, as long as it can be installed in an area where the wiring is not dense to facilitate the introduction of trigger signal lines. The embodiment does not limit this.

It should be noted that the display substrate may also include a plurality of scan driving circuits, and a plurality of trigger signal lines respectively connected to the first-stage shift registers of the plurality of scan driving circuits, which is not limited in the embodiment of the present disclosure. .

For example, in some examples, when the display substrate further includes a plurality of scan driving circuits such as a second scan driving circuit, a third scan driving circuit, etc., the display substrate further includes a first-stage shift with the second scan driving circuit. There are multiple trigger signal lines such as the second trigger signal line ESTV2 connected to the bit register and the third trigger signal line connected to the first stage shift register of the third scan driving circuit. For example, multiple scan driving circuits such as the second scan driving circuit and the third scan driving circuit have the same structure as the first scan driving circuit and are arranged in sequence with the first scan driving circuit to jointly drive the pixel array area of the display substrate. For example, the pixel array area includes a plurality of display areas that do not overlap each other (for example, arranged side by side), and a plurality of scan driving circuits such as a first scan driving circuit, a second scan driving circuit, and a third scan driving circuit respectively drive the corresponding displays. area.

For example, when a plurality of scan driving circuits are included, the second signal line group 160 also includes the plurality of trigger signal lines. For example, the plurality of trigger signal lines may be located between the plurality of power supply lines 140 and the pixel array area 110, for example, located on the right side of each scan driving circuit, or at least overlap with each scan driving circuit, as long as it can be set in The area where the wiring is not dense is sufficient to facilitate the introduction of the trigger signal line, which is not limited in the embodiment of the present disclosure.

The display substrate provided by the above-mentioned embodiments of the present disclosure, by adjusting the position of the first trigger signal line, avoids problems such as the inability to introduce more signal lines and winding connections due to dense wiring, and is more conducive to the realization of the display panel The narrow frame design is conducive to the realization of large-size display panels.

FIG. 5A is a schematic diagram of a layout of a display substrate provided by at least one embodiment of the present disclosure. FIG. 5B shows a schematic diagram of the layout of the display substrate of the first stage shift register including the second scan driving circuit. Fig. 10 is a cross-sectional view of the display substrate shown in Fig. 5B along the A-A' direction. Of course, FIG. 10 can also be used to explain the laminated structure shown in FIG. 5A.

It should be noted that the stacked structure of the first-stage shift register shown in FIG. 5B can be applied to the first-stage shift register of each scan driving circuit, and only needs to change the connection with the corresponding trigger signal. The first-stage shift register of a scan driving circuit is connected to the first trigger signal line ESTV1, the first-stage shift register of the second scan driving circuit is connected to the second trigger signal line ESTV2..., and so on.

6A, FIG. 7A, FIG. 8 and FIG. 9A respectively show plan views of each layer wiring of the display substrate shown in FIG. 5A. 6A is a plan view of a semiconductor layer of a display substrate provided by at least one embodiment of the present disclosure, FIG. 7A is a plan view of a first conductive layer of a display substrate provided by at least one embodiment of the present disclosure, and FIG. 8 is a display provided by at least one embodiment of the present disclosure A plan view of the second conductive layer of the substrate. FIG. 9A is a plan view of the third conductive layer of the display substrate provided by at least one embodiment of the present disclosure.

For example, an interlayer insulating layer (for example, including a first insulating layer, a second insulating layer, a third insulating layer, etc.) may be located between the layer structures shown in FIGS. 6A to 9A. For example, the first insulating layer 350 (shown in FIG. 10) is located between the semiconductor layer 310 shown in FIG. 6A and the first conductive layer 320 shown in FIG. 7A, and the second insulating layer 360 (shown in FIG. 10) is located Between the first conductive layer 320 shown in FIG. 7A and the second conductive layer 330 shown in FIG. 8, the third insulating layer 370 (shown in FIG. 10) is located between the second conductive layer 330 shown in FIG. 8 and FIG. 9A Between the third conductive layer 340 shown.

For example, as shown in FIG. 10, the display substrate further includes a fourth insulating layer 380, and the fourth insulating layer 380 is located on the third conductive layer 340 for protecting the third conductive layer 340.

For example, the materials of the first insulating layer 350, the second insulating layer 360, the third insulating layer 370, and the fourth insulating layer 380 may include inorganic insulating materials such as SiNx, SiOx, SiNxOy, and organic insulating materials such as organic resins, or other materials. Suitable materials are not limited in the embodiments of the present disclosure.

It should be noted that the display substrate shown in FIG. 5A takes the layout design of a shift register in the first scan driving circuit and the signal line connected to it as an example for description, and the layout implementation of the shift registers at other levels can be referred to The layout shown in FIG. 5A will not be repeated here. Of course, other layouts may also be adopted, which is not limited in the embodiment of the present disclosure. Of course, the shift registers of each level of the remaining scan driving circuits can also refer to the layout shown in FIG. 5A, and other layout implementations can also be adopted, which is not limited in the embodiments of the present disclosure.

The display substrate provided by at least one embodiment of the present disclosure will be described in detail below with reference to FIGS. 5A to 9A.

For example, the first transistor T1 to the tenth transistor T10 of the shift register 100 shown in FIG. 5A may be formed on the semiconductor layer 310 shown in FIG. 6A. The semiconductor layer 310 may be formed by patterning a semiconductor material. For example, as shown in FIG. 6A, the semiconductor layer 310 may have a short rod shape or a curved or bent shape as required, and may be used to fabricate the active layers of the first transistor T1 to the tenth transistor T10. Each active layer may include a source region, a drain region, and a channel region between the source region and the drain region. For example, the channel region may be doped with impurities, thereby having semiconductor characteristics; the source region and the drain region are on both sides of the channel region, and may be doped with impurities, and thus have conductivity. For example, the source region corresponds to the source (or called the first electrode) of the transistor, and the drain region corresponds to the drain (or called the second electrode) of the transistor. For example, as shown in FIG. 10, taking the first transistor T1 as an example, the active layer of the first transistor T1 includes a source region S1, a drain region D1 (shown by the dotted line in FIG. 10), and a channel region P1. The first transistor T1 also includes a gate G1, where the gate G1 is located on the first conductive layer 320, which will be introduced below, and will not be repeated here. It should be noted that the drain region D1 of the first transistor is not in the cross-sectional view along the A-A′ direction in FIG. 5B. To ensure a clear description, the drain region D1 of the first transistor T1 is added with a dotted line in FIG. 10.

For example, the material of the semiconductor layer 310 may include oxide semiconductors, organic semiconductors, or amorphous silicon, polysilicon, etc., for example, the oxide semiconductors include metal oxide semiconductors (such as indium gallium zinc oxide (IGZO)), and the polysilicon includes low-temperature polysilicon or high-temperature polysilicon. Polysilicon and the like are not limited in the embodiments of the present disclosure. It should be noted that the above-mentioned source region and drain region may be regions doped with n-type impurities or p-type impurities, which is not limited in the embodiments of the present disclosure.

It should be noted that in other examples, the first electrode and the second electrode of each transistor can also be located on other conductive layers, and are connected to their corresponding active layers through vias in the insulating layer between them and the semiconductor layer. The embodiment of the present disclosure does not limit this.

FIG. 7A shows the first conductive layer 320 of the display substrate. The first conductive layer 320 is disposed on the first insulating layer so as to be insulated from the semiconductor layer 310. For example, the first conductive layer 320 may include the first electrodes CE11, CE12, and CE13 of the first capacitor C1 to the third capacitor C3 and the gates of the first transistor T1 to the tenth transistor T10. Accordingly, the first insulating layer also serves as a gate. Extremely insulating layer. As shown in FIG. 7A, the gates of the first transistor T1 to the tenth transistor T10 are the parts where the semiconductor layer structure of each transistor overlaps the wiring on the first conductive layer 320.

FIG. 8 shows the second conductive layer 330 of the display substrate. The second conductive layer 330 includes the second electrodes CE21, CE22, CE23 of the first capacitor C1 to the third capacitor C3. For example, the second electrode CE21 and the first electrode CE11 at least partially overlap to form a first capacitor C1, the second electrode CE22 and the first electrode CE12 at least partially overlap to form a second capacitor C2, and the second electrode CE23 and the first electrode CE13 at least Partially overlap to form a third capacitor C3.

9A shows the third conductive layer 340 of the display substrate. The third conductive layer 340 includes a first signal line group 150, a plurality of power lines 140, and a second signal line group 160. It should be noted that the third conductive layer also includes conductive connections between transistors, capacitors, and signal lines. As shown in FIGS. 5A and 9A, the first signal line group 150, the plurality of power lines 140, and the second signal line group 160 are connected to the transistors in the remaining layers that need to be connected to them through at least one via hole, and each transistor also passes through At least one via is connected or bridged by a conductive connection part, which will not be repeated here.

For example, the material of the third conductive layer 340 may include aluminum, aluminum alloy, copper, copper alloy, or any other suitable material, which is not limited in the embodiment of the present disclosure. For example, the material of the first conductive layer 320 and the second conductive layer 330 may be the same as the material of the third conductive layer 340, which will not be repeated here.

FIG. 5A shows the relationship between the stacked position of the semiconductor layer 310 shown in FIG. 6A, the first conductive layer 320 shown in FIG. 7A, the second conductive layer 330 shown in FIG. 8 and the third conductive layer 340 shown in FIG. 9A Schematic.

As shown in FIGS. 5A and 9A, in at least one example, the display substrate includes a first signal line group 150 (for example, including a first clock signal line ECK and a second clock signal line ECB) and multiple One power supply line 140 (for example, includes a third power supply line VGL1, a first power supply line VGH1, and a fourth power supply line VGL2) and a second signal line group 160 (for example, includes a first trigger signal line ESTV1). It should be noted that when the second scan driving circuit is included, for example, the second signal line group 160 also includes a second start signal line ESTV2.

In some embodiments, as shown in FIG. 4 or FIG. 5A, the second signal line group 160 is located on the side of the first scan driving circuit 130 close to the pixel array area 110, and the first signal line group 150 is located on the first scan driving circuit 130. The other side opposite to the side where the second signal line group 160 is located. For example, as shown in FIG. 4 or FIG. 5A, the second signal line group 160 is located on the right side of the shift register 100, and the first signal line group 150 is located on the left side of the shift register 100.

In this embodiment, the second signal line group 160 such as the first trigger signal line ESTV1 and the second trigger signal line ESTV2 are arranged on the right side of the shift register, that is, it is connected to the first signal group 150 and multiple power lines 140. Separate arrangement can avoid the dense wiring caused by too many signal lines on the left side, thereby avoiding the problem that the space left for the trigger signal line is too small due to the dense wiring, which affects the introduction of other signal lines.

In other examples, as shown in FIG. 5A, the plurality of power supply lines 140 include a first power supply line VGH1, a second power supply line VGH2, a third power supply line VGL1, and a fourth power supply line VGL2. For example, the first power supply line VGH1 and the second power supply line VGH2 provide the same first power supply voltage, for example, a DC high voltage.

For example, the orthographic projection of the first power line VGH1 on the base substrate 10 overlaps with the orthographic projection of the first scan driving circuit on the base substrate 10, and the orthographic projection of the second power line VGH2 on the base substrate 10 is located on the first power line. Between the orthographic projection of VGH1 on the base substrate 10 and the orthographic projection of the second signal line group 160 on the base substrate.

It should be noted that the orthographic projection of the first scan driving circuit on the base substrate 10 is not a continuous area. Therefore, the orthographic projection of the first power line VGH1 on the base substrate 10 only needs to be the same as that of the first scan driving circuit. The transistors or capacitors can be overlapped on the orthographic projection portion of the base substrate 10. The embodiment of the present disclosure does not limit this. For example, as shown in FIG. 5A, the orthographic projection of the first power line VGH1 on the base substrate 10 overlaps the trace on the first conductive layer 320, for example, and the gate of the third transistor T3 and the first transistor T1. The wiring between the gates, the wiring connecting the gate of the fourth transistor T4, the wiring connecting the gate of the fifth transistor T5, and the wiring connecting the gate of the second transistor T2 partially overlap.

For example, as shown in FIG. 5A, each shift register of the first scan driving circuit includes a first constituent transistor connected to the first power supply line VGH1, and a second constituent transistor and a third constituent transistor connected to the second power supply line VGH2. For example, the fifth transistor T5 is an example of the first constituent transistor, the eighth transistor T8 is an example of the second constituent transistor, and the ninth transistor T9 is an example of the third constituent transistor. In the following, the first constituent transistor is the fifth transistor T5, the second constituent transistor is the eighth transistor T8, and the third constituent transistor is the ninth transistor T9 as an example for description, which is not limited in the embodiment of the present disclosure. The following embodiments are the same as this and will not be repeated here.

For example, the orthographic projection of the fifth transistor T5 on the base substrate 10 is located between the orthographic projection of the first signal line group 150 on the base substrate 10 and the orthographic projection of the first power line VGH1 on the base substrate and is close to the first power line. The orthographic projection of VGH1 on the base substrate 10, the orthographic projection of the eighth transistor T8 and the ninth transistor T9 on the base substrate 10 are located on the orthographic projection of the first power line VGH1 on the base substrate 10 and the second power line VGH2 on the substrate Between the orthographic projections of the substrate 10 and close to the orthographic projection of the second power line VGH2 on the base substrate 10. That is, the first power line VGH1 is arranged at a position close to the fifth transistor T5, and the eighth transistor T8 and the ninth transistor T9 are arranged at a position close to the second power line VGH2, so that the fifth transistor T5, the eighth transistor T8, and the The ninth transistor T9 is wired in order to be connected to one power line (for example, the first power line VGH1), thereby avoiding the space occupied by the winding in the vertical direction of the display substrate.

For example, the third power supply line VGL1 and the fourth power supply line VGL2 are configured to provide the same second power supply voltage, for example, a DC low voltage. For example, the first power supply voltage is higher than the second power supply voltage. For example, the orthographic projection of the fourth power line VGL2 on the base substrate 10 overlaps with the orthographic projection of the first scan driving circuit on the base substrate 10, and the orthographic projection of the third power line VGL1 on the base substrate 10 is located on the third power line. Between the orthographic projection of VGL1 on the base substrate 10 and the orthographic projection of the first signal line group 150 on the base substrate 10.

As mentioned above, the orthographic projection of the first scan driver circuit on the base substrate 10 is not a continuous area. Therefore, the orthographic projection of the fourth power line VGL2 on the base substrate 10 only needs to be in line with some transistors of the first scan driver circuit. Or the capacitors can be overlapped on the orthographic projection part of the base substrate 10. The embodiment of the present disclosure does not limit this. For example, as shown in FIG. 5A, the orthographic projection of the fourth power line VGL2 on the base substrate 10 overlaps the trace on the first conductive layer 320, for example, and the trace connected to the gate of the eighth transistor T8 and connected to the first conductive layer. The wiring of the gate of the ten transistor T10 and the first electrode CE12 of the second capacitor C2 partially overlap.

For example, each shift register of the first scan driving circuit further includes a fourth constituent transistor connected to the third power supply line VGL1, and a fifth constituent transistor connected to the fourth power supply line VGL2. For example, the third transistor T3 is an example of the fourth constituent transistor, and the tenth transistor T10 is an example of the fifth constituent transistor. Hereinafter, the third transistor T3 is the fourth constituent transistor and the tenth transistor T10 is the fifth constituent transistor as an example for description, which is not limited in the embodiment of the present disclosure. The following embodiments are the same as this and will not be repeated here.

For example, the orthographic projection of the third transistor T3 on the base substrate 10 is located on the orthographic projection of the third power line VGL1 on the base substrate 10 away from the first signal line group 150 on the side of the orthographic projection of the base substrate 10, and close to the first The orthographic projection of the three power supply lines VGL1 on the base substrate 10. For example, the orthographic projection of the tenth transistor T10 on the base substrate 10 is located between the orthographic projection of the fourth power line VGL2 on the base substrate 10 and the orthographic projection of the second signal line group 160 on the base substrate 10, and is close to the tenth. The orthographic projection of the transistor T10 on the base substrate 10. That is, the third power line VGL1 is disposed at a position close to the third transistor T3, and the tenth transistor T10 is disposed at a position close to the fourth power line VGL2, so as to prevent the third transistor T3 and the tenth transistor T10 from being connected to the same power line. (For example, the third power line VGL1) or are respectively connected to the third power line VGL1 and the fourth power line VGL2 located on the left side of the display substrate to be wound, thereby avoiding the space occupied by the winding in the vertical direction of the display substrate .

In at least one embodiment of the present disclosure, by arranging the first power line VGH1, the second power line VGH2, the third power line VGL1, and the fourth power line VGL2 respectively beside the transistors connected to it, it is possible to prevent each transistor from being balanced. It is connected to a power cord and wound, thereby avoiding the space occupied by the winding in the vertical direction of the display substrate, which is beneficial to realize the design of a narrow frame.

In other embodiments, the pixel array area 110 includes a first display area and a second display area (not shown in the figure) that are parallel to each other and do not overlap, and the first scan driving circuit 130 is connected to the first display area to drive the second display area. A display area is displayed.

The display substrate further includes a second scan driving circuit arranged in the peripheral area and located on one side of the base substrate. For example, the second scan driving circuit is arranged in sequence with the first scan driving circuit along the scanning direction (for example, the column direction) of the pixel array, and is connected to the second display area to drive the second display area to display. For example, the second scan driving circuit includes a plurality of cascaded second shift registers (for example, includes the first stage shift register 132 shown in FIG. 5B). For example, the structure of the second shift register is the same as the circuit structure of the first shift register, and both adopt the circuit structure of the shift register shown in FIG. 1. Of course, the structure of the second shift register is the same as that of the first shift register. The circuit structure may also be different, which is not limited in the embodiments of the present disclosure. For clarity and conciseness, the second shift register is also referred to as a shift register for short below. The following embodiments are the same as this and will not be repeated here.

For example, the display substrate is a folding display substrate, and further includes a folding line, which is located between the first display area and the second display area. For example, the second resistor R2 is located in the extension direction of the fold line, and the extension direction of the fold line is perpendicular to the extension direction of the first signal line group 150 and the second signal line group 160, so that the signal line can penetrate the entire display substrate. The extension direction of the one signal line group 150 and the second signal line group 160 is the vertical direction described in FIG. 4, and the extension direction of the folding line is the horizontal direction.

For example, as shown in FIG. 5B, the second signal line group 160 further includes a second trigger signal line ESTV2, which is connected to the first-stage shift register 132 of the plurality of cascaded shift registers included in the second scan driving circuit, The second trigger signal is provided to the first stage shift register 132 included in the second scan driving circuit. For example, the first trigger signal line ESTV1 and the second trigger signal line ESTN2 are adjacent and arranged side by side. The first trigger signal line ESTV1 and the second trigger signal line ESTV2 extend side by side, and their extension lengths are the same as the arrangement length of the first scan driving circuit and the second scan driving circuit. For example, they can run through the entire display panel, thereby avoiding Because the lengths of the first trigger signal line ESTV1 and the second trigger signal line ESTV2 are different, the wiring resistances are different, which affects the trigger signals transmitted respectively. Correspondingly, for example, when multiple scan driving circuits are included, the remaining trigger signal lines can also be adjacent to and arranged side by side with the first trigger signal line ESTV1 and the second trigger signal line ESTV2, and their extension lengths can all be the same as those of the first trigger signal line ESTV1 and the second trigger signal line ESTV2. The extension length of one trigger signal line ESTV1 and the second trigger signal line ESTV2 are the same.

It should be noted that FIG. 5B only schematically shows the last stage shift register 131 of the first scan driver circuit and the first stage shift register 132 of the second scan driver circuit. The layout of the other stages of shift registers The manner can refer to the layout manner shown in FIG. 5A, and details are not described again.

6B, FIG. 7B, FIG. 8 and FIG. 9B respectively show plan views of each layer wiring of the first-stage shift register included in the display substrate shown in FIG. 5B. The display substrate provided by at least one embodiment of the present disclosure will be described in detail below with reference to FIGS. 5B to 9B.

It should be noted that the semiconductor layer shown in FIG. 6B is similar to the semiconductor layer shown in FIG. 6A, except that it also includes at least one resistor (for example, a second resistor R2); the first conductive layer 320 shown in FIG. The first conductive layer 320 shown in 7A is similar, except that it also includes a first connection line L1 and a second connection line L2; the third conductive layer 340 shown in FIG. 9B is similar to the third conductive layer 340 shown in FIG. 9A, The difference lies in that it also includes a first conductive connection portion 341 and a second conductive connection portion 342, and the specific connection relationship will be described in detail below.

For example, when the last-stage shift register 131 of the first scan driving circuit outputs an output signal, the second trigger signal line ESTV2 provides a second trigger signal to the first-stage shift register 132 of the second scan driving circuit to drive the A plurality of cascaded shift registers output the output signal line by line. It should be noted that while the first trigger signal line ESTV1 provides the first trigger signal to the first scan driver circuit, the second trigger signal line ESTV2 provides the second trigger signal to the second scan driver circuit, so that it can be simultaneously The first scan driving circuit and the second scan driving circuit are driven to work, as long as the pixel units in the pixel array area of the display substrate can be driven to display a normal image, which is not limited in the embodiment of the present disclosure.

For example, in some examples, as shown in FIG. 3, the display substrate further includes at least one first resistor R1 (as shown in FIG. 3). For example, the first resistor R1 is located on the side of the first scan driving circuit 130 far away from the first shift register of the first stage. For example, the first trigger signal line ESTV1 is connected to the first stage shift register of the first scan driving circuit 130 (for example, the first transistor T1 of the first stage shift register) through the first resistor R1. For example, as shown in FIG. 5B, when the display substrate includes the second scan driving circuit 230, the display substrate may further include at least one second resistor R2. For example, the second resistor R2 is located between the last stage first shift register of the first scan driving circuit 130 and the first stage second shift register of the second scan driving circuit 230. For example, the second trigger signal line ESTV2 is connected to the first stage second shift register of the second scan driving circuit 230 through the second resistor R2, for example, to the first stage shift register 132 of the second scan driving circuit 230 A transistor T1 is connected.

For example, the resistance of the first resistor R1 and the resistance of the second resistor R2 are different. For example, in some examples, the first trigger signal line ESTV1 is connected to the controller 20 from the upper side of the display substrate to receive the first trigger signal, and the second trigger signal line ESTV2 passes through the middle of the display substrate to communicate with the controller 20. Connected to receive the second trigger signal, so that the wiring resistance (load) of the first trigger signal line ESTV1 and the second trigger signal line ESTV2 are different, so, for example, the load on the first trigger signal line ESTV1 is greater than the second trigger signal line When ESTV2 is under load, the first resistor R1 is smaller than the second resistor R2, so that the resistance of the wiring resistance on the first trigger signal line ESTV1 plus the resistance of the first resistor and the wiring on the second trigger signal line ESTV1 The resistance of the resistor plus the resistance of the second resistor is approximately equal. For example, in some examples, the resistance of the first resistor R1 is 5000 ohms, the resistance of the second resistor R2 is 5500 ohms, the resistance of the trace resistance on the first trigger signal line ESTV1 is 1000 ohms, and the resistance of the second trigger The resistance value of the trace resistance on the signal line ESTV1 is 500 ohms.

It should be noted that when the display substrate includes a plurality of scan driving circuits, the display substrate may also include a plurality of resistors to respectively connect the first-stage shift registers of the plurality of scan driving circuits and the corresponding trigger signal lines. For example, when the display substrate includes a plurality of scan driving circuits such as a third scan driving circuit and a fourth scan driving circuit, correspondingly, the display substrate further includes a first transistor T1 connected to the first transistor T1 of the first stage shift register. Three resistors, fourth resistors, etc., which are not limited in the embodiments of the present disclosure. For example, the settings of the remaining multiple resistors can refer to the settings of the first resistor and the second resistor R2, and will not be repeated.

For example, the first resistance and the second resistance may be the same or different, and the specifics may be determined according to actual conditions, which are not limited in the embodiments of the present disclosure. For example, the material of the first resistor and the second resistor may be a semiconductor material, which may be provided in the same layer as the active layer of the transistor. For example, the first resistor and the second resistor are located in the semiconductor layer shown in Fig. 6B.

Since FIG. 5B shows the connection mode of the second resistor, the second resistor R2 shown in FIG. 5B is taken as an example for description. Fig. 10 is a cross-sectional view of the display substrate shown in Fig. 5B along the A-A' direction. The connection manner of each resistor using the second resistor as an example will be described in detail below in conjunction with FIG. 5B and FIG. 10.

As shown in FIGS. 5B and 10, the second resistor R2 is located between the base substrate 10 and the second signal line group 160 in a direction perpendicular to the base substrate 10 (ie, located on the semiconductor layer 310), and the second resistor R2 The orthographic projection on the base substrate 10 is located on the side of the orthographic projection of the second signal line group 160 on the base substrate 10 away from the pixel array area. Correspondingly, the first resistor is located between the base substrate 10 and the second signal line group 160 in a direction perpendicular to the base substrate 10 (ie, located in the semiconductor layer 310), and the first resistor is in the orthographic projection of the base substrate 10 It is located on the side of the orthographic projection of the second signal line group 160 on the base substrate 10 away from the pixel array area. It should be noted that the first resistor and the second resistor R2 can also be arranged at other suitable positions, which are not limited to the position shown in FIG. 5B, as long as they are located at a position convenient to connect the trigger signal line and the first transistor T1. The embodiment does not limit this.

As shown in FIG. 5B, the display substrate further includes at least one first connection line L1 and at least one second connection line L2. The first connection line L1 connects one end of the second resistor R2 to the first stage shift register (for example, the first transistor T1) of the second scan driving circuit, and the second connection line L2 connects the other end of the second resistor R2 to the Second, the trigger signal line ESTV2 is connected.

It should be noted that the display substrate also includes a plurality of first connecting lines and second connecting lines corresponding to the resistors of other scan driving circuits in a one-to-one correspondence, and the first resistors or other resistors pass through the corresponding first connecting lines. Connect the corresponding scan drive circuit and trigger signal line to the second connection line. For example, the first connection line connects one end of the first resistor to the first stage shift register of the first scan drive circuit, and the second connection line connects the The other end of the first resistor is connected to the first trigger signal line, which will not be repeated here.

For example, the first connection line L1 and the second connection line L2 are located on the side of the second resistor R2 away from the base substrate 10, that is, the first connection line L1 and the second connection line L2 are located on the first conductive layer 320 shown in FIG. 7B Therefore, it is possible to avoid the phenomenon of signal disorder caused by crossing the fourth power line VGL2 when it is disposed on the third conductive layer 340.

For example, the display substrate further includes at least one first conductive connection portion L3 and a second conductive connection portion L4, so that each resistor is connected to the first connection line and the second connection line in a bridging manner. For example, the first conductive connection portion L3 and the second conductive connection portion L4 are located on the side of the first connection line L1 and the second connection line L2 away from the base substrate 10, and are connected to the multiple power lines 140 and the first signal line group 150. It is arranged in the same layer as the second signal line 160 group, that is, the first conductive connection portion L3 and the second conductive connection portion L4 are located on the third conductive layer 340 as shown in FIG. 9B.

For example, as described above, the display substrate 1 further includes a first insulating layer 350, a second insulating layer 360, and a third insulating layer 370. For example, the first insulating layer 350 is located between the second resistor R2 (ie the semiconductor layer 310) and the first connection line L1 and the second connection line L2 (first conductive layer 320) in a direction perpendicular to the base substrate 10. The second insulating layer 360 is located on the first connection line L1 and the second connection line L2 (i.e., the first conductive layer 320) and the first conductive connection portion L3 and the second conductive connection portion L4 in the direction perpendicular to the base substrate 10. That is, between the third conductive layer 340). It should be noted that between the second insulating layer 360 and the third conductive layer 340 also includes the second conductive layer 330 shown in FIG. 8 and the third insulating layer located between the second conductive layer 330 and the third conductive layer 340. For the layer 370, please refer to the above description for specific introduction, which will not be repeated here.

For example, as shown in FIGS. 5B and 10, one end of the first conductive connection portion L3 is connected to one end of the first connection line L1 through a via 133 that penetrates the second insulating layer 360 (and the third insulating layer 370), and the first The other end of the conductive connecting portion L3 is connected to one end of the second resistor R2 through a via 134 penetrating the first insulating layer 350 and the second insulating layer 360 (and the third insulating layer 370). For example, the other end of the first connection line L1 passes through the via hole 135 that penetrates the second insulating layer 360 and the third insulating layer 360, and passes through the via hole that penetrates the first insulating layer 350, the second insulating layer 360, and the third insulating layer 360. 139 is connected to the first-stage shift register of the first scan driving circuit (for example, the source S1 of the first transistor T1). For example, when the orthographic projection of the other end of the first connecting line L1 on the base substrate 10 and the orthographic projection of the source S1 of the first transistor T1 on the base substrate 10 at least partially overlap, the first connecting line L1 The other end may also be connected to the source S1 of the first transistor T1 through a via hole (not shown in the figure) penetrating the first insulating layer 350, which is not limited in the embodiment of the present disclosure.

One end of the second conductive connection portion L4 is connected to one end of the second connection line L2 through a via 136 penetrating through the second insulating layer 350 (and the third insulating layer 360), and the other end of the second conductive connection portion L4 penetrates through the first The insulating layer 350 and the via 137 of the second insulating layer 360 (and the third insulating layer 370) are connected to the other end of the second resistor R2. The other end of the second connecting line L2 is connected to the second trigger signal line ESTV2 through a via 138 penetrating through the second insulating layer 360 and the third insulating layer 370.

It should be noted that the display substrate also includes a plurality of first conductive connecting portions and second conductive connecting portions corresponding to the resistors of other scan driving circuits in a one-to-one correspondence. The conductive connecting portion and the second conductive connecting portion are connected to the corresponding first connecting wire and the second connecting wire, which will not be repeated here.

For example, one end of the first conductive connection part is connected to one end of the first connection line through a via hole penetrating the second insulating layer, and the other end of the first conductive connection part is connected to one end of the first connection line through a via hole penetrating the first insulating layer and the second insulating layer. One end of the first resistor is connected, and the other end of the first connection line is connected to the first stage shift register of the first scan driving circuit; one end of the second conductive connection part is connected to the second connection line through a via hole penetrating the second insulating layer One end of the second conductive connection part is connected to the other end of the first resistor through a via hole penetrating the first insulating layer and the second insulating layer, and the other end of the second connecting line is connected to the other end of the first resistor through the second insulating layer. The hole is connected with the first trigger signal line.

In the embodiment of the present disclosure, the first-stage shift register of each scan driving circuit is connected to the corresponding trigger signal through each resistor, which can prevent the static electricity generated at the moment of energizing the device from affecting each signal (for example, trigger signal, clock Signal, etc.), which can make the output signal output by the scan driving circuit more accurate and improve the display quality of the display panel.

At least one embodiment of the present disclosure also provides a display device. FIG. 11 is a schematic diagram of a display device provided by at least one embodiment of the present disclosure. As shown in FIG. 11, the display device 2 includes a display substrate 1 provided in any embodiment of the present disclosure, for example, the display substrate 1 shown in FIG. 4, FIG. 5A or FIG. 5B.

It should be noted that the display device 2 can be any product or component with a display function, such as an OLED panel, an OLED TV, a mobile phone, a tablet computer, a notebook computer, a digital photo frame, a navigator, etc. The display device 2 may also include other components, which are not limited in the embodiment of the present disclosure.

It should be noted that, for the sake of clarity and conciseness, the embodiments of the present disclosure do not provide all the constituent units of the display device. In order to realize the substrate function of the display device, those skilled in the art can provide and set other structures not shown according to specific needs, which are not limited in the embodiments of the present disclosure.

Regarding the technical effects of the display device 2 provided by the above-mentioned embodiments, reference may be made to the technical effects of the display substrate 1 provided in the embodiments of the present disclosure, which will not be repeated here.

At least one embodiment of the present disclosure also provides a manufacturing method of the display substrate. FIG. 12 is a flowchart of a manufacturing method of a display substrate provided by at least one embodiment of the present disclosure. For example, the manufacturing method can be used to manufacture the display substrate provided by any embodiment of the present disclosure. For example, it can be used to make the display substrate shown in FIG. 5A or FIG. 5B.

As shown in FIG. 12, the manufacturing method of the display substrate includes step S110 to step S120.

Step S110: Provide a base substrate.

Step S120: forming a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group on the peripheral area of the base substrate and the first side of the base substrate.

For step S110, for example, the base substrate 10 may be made of glass, plastic, quartz, or other suitable materials, which is not limited in the embodiment of the present disclosure. For example, the base substrate 10 includes a pixel array area 110 and a peripheral area 120.

For step S120, for example, the first scan driving circuit 130, the plurality of power lines 140, the first signal line group 150, and the second signal line group 160 are arranged in the peripheral area 120 and located on the first side of the base substrate 10, for example , Located on the left side of the base substrate 10.

For example, the first scan driving circuit 130 includes a plurality of cascaded shift registers 100, for example, includes a plurality of shift registers as shown in FIG. 1. For example, the first transistor T1 to the tenth transistor T10 of the shift register may be formed on the semiconductor layer 310 shown in FIG. 6A. For example, the material of the semiconductor layer 310 may include oxide semiconductors, organic semiconductors, or amorphous silicon, polysilicon, etc., for example, the oxide semiconductors include metal oxide semiconductors (such as indium gallium zinc oxide (IGZO)), and the polysilicon includes low-temperature polysilicon or high-temperature polysilicon. Polysilicon and the like are not limited in the embodiments of the present disclosure. It should be noted that the above-mentioned source region and drain region may be regions doped with n-type impurities or p-type impurities, which is not limited in the embodiments of the present disclosure.

For example, the first electrodes CE11, CE12, CE13 of the first capacitor C1 to the third capacitor C3 and the gates of the first transistor T1 to the tenth transistor T10 may be formed on the first conductive layer 320 shown in FIG. 7A. As shown in FIG. 7A, the gates of the first transistor T1 to the tenth transistor T10 are the parts where the semiconductor layer structure of each transistor overlaps the wiring on the first conductive layer 320.

For example, the second electrodes CE21, CE22, and CE23 of the first capacitor C1 to the third capacitor C3 may be formed on the second conductive layer 330 shown in FIG. 8. For example, the second electrode CE21 and the first electrode CE11 at least partially overlap to form a first capacitor C1, the second electrode CE22 and the first electrode CE12 at least partially overlap to form a second capacitor C2, and the second electrode CE23 and the first electrode CE13 at least Partially overlap to form a third capacitor C3.

For example, the plurality of power lines 140, the first signal line group 150, and the second signal line group may be formed on the third conductive layer 340 shown in FIG. 9A. It should be noted that the third conductive layer also includes conductive connections between transistors, capacitors, and signal lines. As shown in FIGS. 5A and 9A, the first signal line group 150, the plurality of power lines 140, and the second signal line group 160 are connected to the transistors in the remaining layers that need to be connected to them through at least one via hole, and each transistor also passes through At least one via is connected or bridged by a conductive connection part, which will not be repeated here.

For example, the plurality of power supply lines 140 are configured to provide a power supply voltage to the plurality of cascaded shift registers 100 included in the first scan driving circuit 130. For example, a first power supply voltage (for example, with a high DC level) and a second power supply voltage (for example, with a low DC level) are provided.

For example, the first signal line group 150 includes at least one timing signal line, for example, including a first clock signal line ECK and a second clock signal line ECB, and is configured to shift to a plurality of cascades included in the first scan driving circuit 130 The register 100 provides timing signals, for example, the first clock signal ECK and the second clock signal ECB described above.

For example, in at least one example, the second signal line group 160 includes a first trigger signal line ESTV1, which is configured to be a first-stage shift register in a plurality of cascaded shift registers 100 included in the first scan driving circuit 150 Connected to provide the first trigger signal to the first stage shift register. For example, the first trigger signal line ESTV1 is located between the plurality of power supply lines 140 and the pixel array area 110.

In some embodiments, as shown in FIG. 4 or FIG. 5A, the second signal line group 160 is formed on the side of the first scan driving circuit 130 close to the pixel array area 110, and the first signal line group 150 is formed in the first scan driving circuit. The other side of the circuit 130 opposite to the side where the second signal line group 160 is located. For example, as shown in FIG. 4 or FIG. 5A, the second signal line group 160 is located on the right side of the shift register 100, and the first signal line group 150 is located on the left side of the shift register 100.

In this embodiment, by arranging the first trigger signal line ESTV1 on the right side of the shift register, that is, separately from the first signal group 150 and the multiple power lines 140, it is possible to avoid the occurrence of too many signal lines on the left side. The wiring is dense, which can avoid the problem that the space left for the trigger signal line is too small due to the dense wiring, which affects the introduction of other signal lines.

For example, step S120 further includes forming a first power line VGH1, a second power line VGH2, a third power line VGL1, and a third power line VGL1 on the base substrate 10, and forming a connection with the first power line VGH1 on the base substrate 10. The fifth transistor T5 connected, the eighth transistor T8 and the ninth transistor T9 connected to the second power line VGH2, the third transistor T3 connected to the third power line VGHL1, and the tenth transistor T10 connected to the fourth power line VGL2 . For example, the first power supply line VGH1 and the second power supply line VGH2 provide the same first power supply voltage, for example, a DC high voltage.

For example, the first power line VGH1 is formed at a position close to the fifth transistor T5, and the second power line VGH2 is formed at a position close to the eighth transistor T8 and the ninth transistor T9, so that the fifth transistor T5, the eighth transistor T8, and the The ninth transistor T9 is wired in order to be connected to one power line (for example, the first power line VGH1), thereby avoiding the space occupied by the winding in the vertical direction of the display substrate.

For example, the third power line VGL1 and the fourth power line VGL2 provide the same second power supply voltage, for example, a DC low voltage. For example, the first power supply voltage is higher than the second power supply voltage. For example, the orthographic projection of the fourth power line VGL2 on the base substrate 10 overlaps with the orthographic projection of the first scan driving circuit on the base substrate 10, and the orthographic projection of the third power line VGL1 on the base substrate 10 is located on the third power line. Between the orthographic projection of VGL1 on the base substrate 10 and the orthographic projection of the first signal line group 150 on the base substrate 10.

For example, the third power line VGL1 is formed at a position close to the third transistor T3, and the fourth power line VGL2 is formed at a position close to the tenth transistor T10, so as to prevent the third transistor T3 and the tenth transistor T10 from being connected to the same power line. (For example, the third power line VGL1) or are respectively connected to the third power line VGL1 and the fourth power line VGL2 located on the left side of the display substrate to be wound, thereby avoiding the space occupied by the winding in the vertical direction of the display substrate .

For example, in some examples, the manufacturing method of the display substrate further includes: forming a second scan driving circuit in the peripheral area and the first side of the base substrate 10. For example, the second scan driving circuit includes a plurality of cascaded shift registers (for example, includes the first stage shift register 132 shown in FIG. 5B). For example, as shown in FIG. 5B, the second signal line group 160 further includes a second trigger signal line ESTV2, which is connected to the first-stage shift register 132 of the plurality of cascaded shift registers included in the second scan driving circuit, The second trigger signal is provided to the first stage shift register 132 included in the second scan driving circuit.

For example, the extension lengths of the first trigger signal line ESTV1 and the second trigger signal line ESTV2 are the same as the arrangement lengths of the first scan driver circuit and the second scan driver circuit, so that the first trigger signal line ESTV1 and the second trigger signal The different extension lengths of the signal line ESTV2 lead to different wiring resistances to affect the trigger signals transmitted respectively. Correspondingly, for example, when multiple scan driving circuits are included, the extension lengths of the remaining trigger signal lines may be the same as the extension lengths of the first trigger signal line ESTV1 and the second trigger signal line ESTV2.

For example, in some examples, the manufacturing method of the display substrate further includes: forming at least one first resistor and at least one resistor in a direction perpendicular to the base substrate 10 and between the base substrate 10 and the second signal line group 160 The second resistance.

It should be noted that when the display substrate includes a plurality of scan drive circuits (for example, further includes a third scan drive circuit, a fourth scan drive circuit, etc.), the manufacturing method of the display substrate further includes: In the direction of the substrate 10 and between the base substrate 10 and the second signal line group, resistors corresponding to a plurality of scan driving circuits are formed, which is not limited in the embodiment of the present disclosure.

As shown in FIGS. 5B and 10, the second resistor R2 is located between the base substrate 10 and the second signal line group 160 in a direction perpendicular to the base substrate 10 (ie, located on the semiconductor layer 310), and the second resistor R2 The orthographic projection on the base substrate 10 is located on the side of the orthographic projection of the second signal line group 160 on the base substrate 10 away from the pixel array area. Correspondingly, the first resistor is located between the base substrate 10 and the second signal line group 160 in a direction perpendicular to the base substrate 10, and the orthographic projection of the first resistor on the base substrate 10 is located in the second signal line group 160. The orthographic projection of the base substrate 10 is away from the side of the pixel array area. It should be noted that the first resistor and the second resistor R2 can also be arranged at other suitable positions, which are not limited to the positions shown in FIG. 5B.

For example, in some examples, the manufacturing method of the display substrate further includes: forming at least one first connecting line on the side of the first resistor R1 and the second resistor R2 away from the base substrate 10, that is, on the first conductive layer 320 And at least one second connection line. Therefore, it is possible to avoid the phenomenon of signal disorder caused by crossing the fourth power line VGL2 when it is disposed on the third conductive layer 340.

For example, the first connecting line connects one end of the first resistor with the first-stage shift register of the first scan driving circuit, and the second connecting line connects the other end of the first resistor with the first trigger signal line; The connecting line L1 connects one end of the second resistor R2 with the first stage shift register (for example, the first transistor T1) of the second scan driving circuit, and the second connecting line L2 connects the other end of the second resistor R2 with the second trigger The signal line ESTV2 is connected.

For example, in some examples, the manufacturing method of the display substrate further includes: forming a first conductive layer on the base substrate 10 and the plurality of power lines 140, the first signal line group 150, and the second signal line group 160 on the same layer. The connecting portion L3 and the second conductive connecting portion L4; in the direction perpendicular to the base substrate 10 and in the first resistor R1 (ie the semiconductor layer 310) and the first connecting line L1 and the second connecting line L2 (first conductive layer 320) is formed between the first insulating layer 350; in the direction perpendicular to the base substrate 10 and on the first connection line L1 and the second connection line L2 (first conductive layer 320) and the first conductive connection portion L3 and the first A second insulating layer 360 is formed between the two conductive connecting portions L4 (ie, the third conductive layer 340). It should be noted that the manufacturing method of the display substrate further includes forming a second conductive layer 330 as shown in FIG. 8 between the second insulating layer 360 and the third conductive layer 340 and the second conductive layer 330 and the third conductive layer 330 For the third insulating layer 370 between the layers 340, reference may be made to the above description for specific introduction, which will not be repeated here.

It should be noted that in multiple embodiments of the present disclosure, the flow of the method for manufacturing the display substrate may include more or fewer operations, and these operations may be performed sequentially or in parallel. Although the flow of the production method described above includes multiple operations appearing in a specific order, it should be clearly understood that the order of the multiple operations is not limited. The above-described production method can be executed once or multiple times according to predetermined conditions.

Regarding the technical effects of the manufacturing method of the display substrate provided in the foregoing embodiments, reference may be made to the technical effects of the display substrate provided in the embodiments of the present disclosure, and details are not repeated here.

The following points need to be explained:

(1) The drawings of the embodiments of the present disclosure only refer to the structures related to the embodiments of the present disclosure, and other structures can refer to the usual design.

(2) In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

The foregoing descriptions are merely exemplary implementations of the present disclosure, and are not used to limit the protection scope of the present disclosure, which is determined by the appended claims.

Claims

A display substrate includes:

The base substrate includes the pixel array area and the peripheral area,

A first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group are arranged in the peripheral area and located on the first side of the base substrate;

Wherein, the first scan driving circuit includes a plurality of cascaded first shift registers;

The plurality of power supply lines are configured to provide a plurality of power supply voltages to a plurality of cascaded first shift registers included in the first scan driving circuit;

The first signal line group includes at least one timing signal line, configured to provide at least one timing signal to a plurality of cascaded first shift registers included in the first scan driving circuit;

The second signal line group includes a first trigger signal line, which is configured to be connected to the first shift register of the first stage among the plurality of cascaded first shift registers included in the first scan driving circuit to The first shift register of the first stage provides a first trigger signal,

The first trigger signal line is located between the plurality of power supply lines and the pixel array area.
The display substrate according to claim 1, wherein the second signal line group is located on a side of the first scan driving circuit close to the pixel array area,

The first signal line group is located on the other side of the first scan driving circuit opposite to the side where the second signal line group is located.
The display substrate according to claim 1 or 2, wherein the pixel array area includes a first display area and a second display area that are parallel to each other and do not overlap, and the first scan driving circuit and the first display area Connected to drive the first display area to display,

The display substrate further includes a second scan driving circuit arranged in the peripheral area and located on the first side of the base substrate, and arranged in sequence with the first scan driving circuit along the scanning direction of the pixel array, And connected with the second display area to drive the second display area to display; wherein,

The second scan driving circuit includes a plurality of cascaded second shift registers,

The second signal line group also includes a second trigger signal line, configured to be connected to the first-stage second shift register of the plurality of cascaded second shift registers included in the second scan driving circuit to The second trigger signal is provided to the first stage second shift register included in the second scan driving circuit.
4. The display substrate according to claim 3, wherein the extension length of the first trigger signal line and the second trigger signal line is the same as the arrangement length of the first scan driving circuit and the second scan driving circuit .
The display substrate according to claim 3 or 4, wherein the first trigger signal line and the second trigger signal line are arranged side by side.
5. The display substrate according to any one of claims 1-5, wherein the plurality of power supply lines includes a first power supply line and a second power supply line; wherein,

The first power line and the second power line are configured to provide the same first power voltage.
7. The display substrate of claim 6, wherein the orthographic projection of the first power line on the base substrate overlaps with the orthographic projection of the first scan driving circuit on the base substrate,

The orthographic projection of the second power line on the base substrate is located between the orthographic projection of the first power line on the base substrate and the orthographic projection of the second signal line group on the base substrate. between.
The display substrate according to claim 3, further comprising at least one first resistor; wherein,

The first resistor is located at a side of the first scan driving circuit away from the first shift register of the first stage, and the first trigger signal line is connected to the first scan driver through the at least one first resistor. The first stage of the circuit is connected to the first shift register.
8. The display substrate according to claim 8, further comprising at least one second resistor, wherein:

The second resistor is located between the first shift register of the last stage of the first scan driver circuit and the second shift register of the first stage of the second scan driver circuit, and the second trigger signal line passes through the The at least one second resistor is connected to the first-stage second shift register of the second scan driving circuit.
9. The display substrate according to claim 9, wherein the resistance value of the first resistor and the resistance value of the second resistor are different.
9. The display substrate according to claim 9, further comprising a folding line located between the first display area and the second display area,

Wherein, the second resistor is located in the extension direction of the folding line, and the extension direction of the folding line is perpendicular to the extension direction of the first signal line group and the second signal line group.
11. The display substrate according to any one of claims 9-11, wherein the orthographic projection of the at least one second resistor on the base substrate is located at the last stage of the first scan driving circuit. The orthographic projection of the base substrate and the first-stage second shift register of the second scan driving circuit are between the orthographic projection of the base substrate.
The display substrate according to any one of claims 8-12, wherein the at least one first resistor is located between the base substrate and the second signal line group in a direction perpendicular to the base substrate And the orthographic projection of the at least one first resistor on the base substrate is located on the side of the orthographic projection of the second signal line group on the base substrate away from the pixel array area.
The display substrate according to any one of claims 8-13, wherein the material of the first resistor is a semiconductor material.
15. The display substrate according to any one of claims 8-14, further comprising at least one first connection line and at least one second connection line,

Wherein, the first connecting line connects one end of the at least one first resistor with the first shift register of the first stage of the first scan driving circuit,

The second connecting line connects the other end of the at least one first resistor with the first trigger signal line.
15. The display substrate according to claim 15, wherein the first connection line and the second connection line are located on a side of the at least one first resistor away from the base substrate.
The display substrate according to claim 15 or 16, further comprising: a first conductive connection portion, a second conductive connection portion, a first insulating layer and a second insulating layer,

Wherein, the first conductive connection portion and the second conductive connection portion are located on a side of the first connection line and the second connection line away from the base substrate, and are connected to the plurality of power lines, The first signal line group and the second signal line group are arranged in the same layer,

The first insulating layer is located between the at least one first resistor and the first connecting line and the second connecting line in a direction perpendicular to the base substrate, and the second insulating layer is perpendicular to the Located between the first connection line and the second connection line and the first conductive connection portion and the second conductive connection portion in the direction of the base substrate;

One end of the first conductive connection portion is connected to one end of the first connection line through a via hole penetrating the second insulating layer, and the other end of the first conductive connection portion is connected to one end of the first connection line by penetrating the first insulating layer and The via hole of the second insulating layer is connected to one end of the at least one first resistor,

The other end of the first connection line is connected to the first shift register of the first stage of the first scan driving circuit;

One end of the second conductive connection portion is connected to one end of the second connection line through a via hole penetrating the second insulating layer, and the other end of the second conductive connection portion is connected to one end of the second connection line by penetrating the first insulating layer and The via hole of the second insulating layer is connected to the other end of the at least one first resistor,

The other end of the second connecting line is connected to the first trigger signal line through a via hole penetrating the second insulating layer.
3. The display substrate according to claim 3, wherein the first shift register of the first scan driving circuit each includes a first constituent transistor connected to the first power line and a second power line The second constituent transistor and the third constituent transistor; where,

The orthographic projection of the first constituent transistor on the base substrate is located between the orthographic projection of the first signal line group on the base substrate and the orthographic projection of the first power line on the base substrate And close to the orthographic projection of the first power line on the base substrate,

The orthographic projection of the second constituent transistor and the third constituent transistor on the base substrate is located on the orthographic projection of the first power line on the base substrate and the second power line on the base substrate Between the orthographic projections and close to the orthographic projection of the second power line on the base substrate.
The display substrate according to any one of claims 1-18, wherein the plurality of power supply lines include a third power supply line and a fourth power supply line; wherein,

The third power line and the fourth power line are configured to provide the same second power voltage;

The orthographic projection of the fourth power line on the base substrate coincides with the orthographic projection of the first scan driving circuit on the base substrate,

The orthographic projection of the third power line on the base substrate is located between the orthographic projection of the fourth power line on the base substrate and the orthographic projection of the first signal line group on the base substrate. between.
The display substrate according to claim 19, wherein the first shift register of the first scan driving circuit each further comprises a fourth constituent transistor connected to the third power line and a fourth power line connected to the fourth power line. The fifth connected constitutes a transistor; among them,

The orthographic projection of the fourth constituent transistor on the base substrate is located at one of the orthographic projection of the third power line on the base substrate away from the orthographic projection of the first signal line group on the base substrate Side and close to the orthographic projection of the third power line on the base substrate,

The orthographic projection of the fifth constituent transistor on the base substrate is located between the orthographic projection of the fourth power line on the base substrate and the orthographic projection of the second signal line group on the base substrate , And close to the orthographic projection of the fourth power line on the base substrate.
A display substrate includes:

The base substrate includes the pixel array area and the peripheral area,

A first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group are arranged in the peripheral area and located on the first side of the base substrate;

Wherein, the first scan driving circuit includes a plurality of cascaded first shift registers;

The plurality of power supply lines are configured to provide a plurality of power supply voltages to a plurality of cascaded first shift registers included in the first scan driving circuit;

The first signal line group includes at least one timing signal line, configured to provide at least one timing signal to a plurality of cascaded first shift registers included in the first scan driving circuit;

The second signal line group includes a first trigger signal line, which is configured to be connected to the first shift register of the first stage among the plurality of cascaded first shift registers included in the first scan driving circuit to The first shift register of the first stage provides a first trigger signal,

Wherein, the first scan driving circuit includes a first transistor, a second transistor and a third transistor, and the first transistor, the second transistor and the third transistor are respectively connected to the first signal line group,

The extension directions of the channels of the first transistor, the second transistor, and the third transistor are parallel to the extension directions of the first signal line group and the second signal line group.
22. The display substrate according to claim 21, wherein the first scan driving circuit further comprises a sixth transistor and a seventh transistor, the sixth transistor and the seventh transistor are respectively connected to the first signal line group ,

The extension directions of the channels of the sixth transistor and the seventh transistor are parallel to the extension directions of the first signal line group and the second signal line group.
A display device comprising the display substrate according to any one of claims 1-22.
A method for manufacturing a display substrate according to any one of claims 1-22, comprising:

Providing the base substrate;

Sequentially forming a semiconductor layer, a first insulating layer, a first conductive layer, a second insulating layer, a second conductive layer, a third insulating layer, and a third conductive layer in a direction perpendicular to the base substrate;

Wherein, the power line, the first signal line group, and the second signal line group are located on the third conductive layer;

The first scan driving circuit is formed on the semiconductor layer, the first conductive layer, and the second conductive layer;

The first scan driving circuit is connected to the power line, the first signal line group, and the first signal line group through via holes penetrating the first insulating layer, the second insulating layer, and the third insulating layer, respectively. Two signal wire groups are connected.